Theoretical progress in describing the B-meson lifetimes
| dc.creator | Becirevic, Damir | |
| dc.date | 2001-10-09 | |
| dc.date | 2001-11-06 | |
| dc.date.accessioned | 2026-07-07T03:45:30Z | |
| dc.date.available | 2026-07-07T03:45:30Z | |
| dc.description | The present status of the theoretical estimates of the difference between the widths of the neutral Bs-mesons and of the B-meson lifetime ratios is reviewed. In particular, the lattice results for the matrix elements of the relevant (delta B=2)-operators are updated and the first lattice QCD results for the matrix elements of (delta B=0)-operators are presented. In both cases, the NLO perturbative QCD corrections in the coefficient functions have been included. The theoretically updated results are: (delta Gamma/Gamma)_{Bs} = (7 +/- 4) %, tau(B+)/tau(Bd) = 1.07(3) and tau(Bs)/tau(Bd) = 1.00(2). | |
| dc.description | 14 pages (5 figures), Extended version of the talk given at IEC-HEP Budapest, 2001 | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0110124 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0110124 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/40947 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | High Energy Physics - Experiment | |
| dc.subject | High Energy Physics - Lattice | |
| dc.title | Theoretical progress in describing the B-meson lifetimes | |
| dc.type | text |